15851420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1487}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 20896228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1487, 2132, 2665, 2974, 5330, 5948, 7435, 10660, 14870, 19331, 29740, 38662, 60967, 77324, 96655, 121934, 193310, 243868, 304835, 386620, 609670, 792571, 1219340, 1585142, 3170284, 3962855, 7925710, 15851420]

約数ペア:

[(1, 15851420), (2, 7925710), (4, 3962855), (5, 3170284), (10, 1585142), (13, 1219340), (20, 792571), (26, 609670), (41, 386620), (52, 304835), (65, 243868), (82, 193310), (130, 121934), (164, 96655), (205, 77324), (260, 60967), (410, 38662), (533, 29740), (820, 19331), (1066, 14870), (1487, 10660), (2132, 7435), (2665, 5948), (2974, 5330)]